Sanyo DC-D9 User manual

....
Service Manual Mini Component
System
..
.,, .
.:,
.....
:.- CONTENTS
..
SPECIFICATIONS ................. 1
LASER BEAM SAFETY PRECAUTIONS .1
WHAT TO DO IF . . . . . . . . . . . . . . . . . . 2
REMOVAL AND INSTALLATION ...... 2
CD CHANGER OPERATION
DESCRIPTION ................... 4
CD MECHANISM ADJUSTMENTS ..... 7
CD PLAYER ADJUSTMENTS ....... 11
TAPE DECK ADJUSTMENTS ....... 13
IFILE NO. I
DC-D9 (AU)
PRODUCT CODE No.
129 472 04
TUNER ADJUSTMENTS . . . . . . . . . . . 15
EXPLODED VIEW . . . . . . . . . . . . . . . . 16
PARTS LIST ................... 17
SCHEMATIC DIAGRAM . . . . . . . . . . . . 28
WIRING DIAGRAM ............... 30
[(2 BLOCK DiAGRAM &
DESCRIPTION .................. 44
IC &TRANSISTOR VOLTAGES . . . . . . 51
........................................................................................................................................ .........:
~This service manual consists of “DC-D9U “(Main unit), “RB-D9” (Remote control )~
~and “SX-D9 “(Speaker system ).
........................................................................................................................................... .......
.. .,
REFERENCE No. SM580501

SPECIFICATIONS
TUNER SECTION
Reception frequency .FM :87.5-108.0 MHz
(50 kHz steps)
AM :522-1,611 kHz
(9kHz steps)
CASSEITE DECK SECTION
Track system ....... 4track, 2-channel stereo
Frequency response . . 80 Hz -13,500 Hz
Signal to noise ratio . . 50 dB
Wow &Flutter . . . . . . 0.15 %(WRMS)
Tape speed ........ 4.75 cmfsec
Fast forward and
rewind time .... Approx. 110 sec. (C-60)
CD PLAYER SECTION
Type .............. Changer, 3-disc -
Channels .......... 2-channel stereo
Sampling frequency . . 44.1 kHz
Pick-up ............ optical 3-beam semiconductor laser
Laser output ........ 0.6 mW (Continuous wave max.)
Wave length ........ 790 nm
Frequency response . . 20-20,000 Hz
Wow &Flutter . . . . . . Below measurable limits
LASER BEAM SAFEN PRECAUTIONS—
●Pick-up that emits alaser beam is used in this
AMPLIFIER SECTION
Output power .......
Inputs .............
outputs ...........
GENERAL
Power requirements . .
Power consumption . .
Dimensions (WXHXD) .
Weight . . . . . . . . . . . .
SPEAKER SYSTEMS
Type. .............
tJnti used . . . . . . . . . .
12.5WX2
(at 4ohms, 10% distortion )
VIDEO IN :400 mV/50k ohms
SPEAKER :4 ohms
PHONES :8-32 ohms
AC :230-240 V, 50 Hz
45 w
Approx. 270 x300 x290 mm
Approx. 5kg
2way bass reflex
Woofer: 12 cm cone type
Tweeter :piezoelectric
Maximum power-handling capacity 25 W(peak)
Nominal impedance . . 4ohms
Dimensions (WXHXD) .Approx. 180 x300 x194 mm
Weight ............ Approx. 1.6 kg (per speaker)
Specifications subject to change without notice.
CAUTION :
USE OF CONTROLS OR ADJUSTMENTS
OR PERFORMANCE OF PROCEDURES
OTHER THAN THOSE SPECIFIED
HEREIN MAY RESULT IN HAZARDOUS
RADIATION EXPOSURE
LASER OUTPUT ..... 0.6 mW Max. (CW)
WAVELENGTH . . . . . . 790 nm
Dplayer. .
\{0!
CUSS 1LASER PROOUCr
LUOKAN 1l_EERIJuIE
XLASS 1IASEPNPARAT
.....
CAUTION-INVISIBLELASERRADIATIONWHENOPENAND
lNTEfiLOCKSOEFEATED.AVOIOEXPOSURETOBEAM.
ADVARSEL-USYNLIGLAsEflsmktrw VEOlIBNiNG,NAfl
SIKKERHEDSAFBRYOEREERUDEAFFUNKTION,UNDGhUOSA3_TELSE
FORSTRALING.
VARNIN~-OSYNLIGLASERSTRALNING.NAROENNADELAROPPNAO
OCHSPARRARURKOPPLAO.STRALENARFARLIG.
VORSICHT;UNSICHTBARELASERSTRAHLUNGTRITTAUS,WENN
QECKEL~EOFFNETUNOWENNSICHERHEITSVERRIEGELUNG
UBERBRUCKTtST.NICHT,DEMSTRAHLAUSSETZEN.
VARO!Avattaessaja suojalukihrsohilettaessaoifiittiina
nakymattomaiieiasersateiiyiie.Aiakatso ateeseen. A
...
–l-

...... WHAT To DO IF
If the operation of the unit or display is not normal,
or you wish to clear the contents of the memory.
1.
2.
3.
4.
Disconnect the power cord’s plug from the
electrical outlet.
Press the RESET button for at least 20 seconds.
Connect the power cord.
Press the POWER button to turn the power on.
REMOVAL AND INSTALLATION
●
,-, ●
... . . ●
●
...”....
..:
.. .
RESET
k
/\4
Disconnect the power cord’s plug from the electrical outlet.
All wiring should be returned to the original position after work is completed.
First have ready many the new FIXERS (61 4129 2496) for replacement.
Arrange the lead wires so that they are not near the heat sink.
/-%
a. CABINET
(1) Remove the 10 rear panel mounting screws. (@)
(2) Remove the BALANCE knob. (@)
Press the STOP/EJECT Button.
Open the cassette compartment lid. (~)
b. TAPE AND CD MECHANISM BLOCK
(1) Remove the TAPE MECHANISM mounting
&
Iw
screw. (0) *
(2) Remove the 2CD MECHANISM mounting ~
screws. (0)
(3) Remove the chassis mounting screw. (@) ‘$2 :.:!””[’:> 1‘
,.
-2-

REMOVAL AND INSTALLATION
c. POWER TRANSFORMER
(1) Removal the2shield cover mounting screws.(@)
(2) Removal the ACpower socket mounting screw.(@)
(3) Remove the4power transformer mounting screws.(@) /“’”
d. CHASSIS
(1) Removal
(2) Removal
(3) Removal
(4) Removal
the 2TUNER, AMP. &CD P.W.Board mounting screws. (~)
the TUNER, AMP. &CD P.W.Board. (@,@)
the FRONT P.W.Board. (@,@,@)
the 2CD mechanism mounting screws. (~)
—-6is&
.
/’
.’
,
/J
/’
,/
-3-

c1) CHANGER OPERATION DESCRIPTION
●
●
●
a.
This set is capable of stocking and playing up to 3CDs.
While playing aCD, other discs can be replaced.
In this case, press the button for the disc No. you wish to remove, and then press the OPEN/CLOSE button.
When the “POWER” button is turned off, the power turns off after the discs are loaded in the disc trays.
MOTOR &MECHANISM SWITCHES LAYOUT
,..
OPEN
.,
rLOAD /UNLOAD MOTOR
~LOAD SWITCH (SW3)
I \I -------
(JNLOAD SWITCH (SW5 )
-d 6F
-PI AY SWITCH (5k’d4 )
CLOSE SWITCH (SW2) ?.
/&
OPEN SWITCH (SW1 )1A/
DISC 1.-1’
DISC 2-g
IXsc 3
%t-wNMOTO
CLOSE END SWITCH
/OPEN/CLOSE RACK GEAR
!2d--
-s+ OPEN/ CLOSE MOTOR
-; .“
CWEN END SWITCH
-4-

CD CHANGER OPERATION DESCRIPTION ,.,.
b. UP/DOWN FUNCTION (DURING “UP” )
(1) The rotation of the UP/DOWN MOTOR (624) rotates the UP/DOWN DRIVE GEAR (605) in the counter-clockwise direction.
(2) In connection ~jth this, the TRAY HOLDER SLIDE (640) moves forward, and at the same time, the RIGHT SLIDE (575) is
moved backwards by the SYNCRO LEVER (632).
UP/DOWN CAM GER 1(602)
UPIDOWN ORIVE GEAR 1/UPI DOWN IDLER 2(609)
UPIDOWN
DRIVE (
(605) UPIDOWN
MOTOR (624)
/~-l--rJ- UPI DOWN IOLER 1(607)
UPI 0dWy64;;VE GEAR 2\U;IDOWN IDLER 2(609)
UP/DOWN CAM GEAR 2’ (603)
+“ -1
--.,\w
SYNCRO LEVEfi (;32) // A‘“l
/
-.. -./
32 ’79==4P
<: UPI DOWN
DRIVE GEAR 2
(603)
/
-5-
. ..

;:CD CHANGER OPERATION DESCRIPTION
c. LOAD/UNLOAD FUNCTION
(1) The rotation of the LOADA-JNLOAD MOTOR rotates the LOADWNLOAD DRIVE GEAR (552) in the clockwise direction.
(2) The DRIVE GEAR and the gear portion of the TRAY mesh together and the TRAY moves backwards.
(3) The completion of TRAY movement causes the UP/DOWN MOTOR to operate and lower the TRAY HOLDER, putting the
unit to chucking stayus.
LOADIUNLOAD DRIVE GEAR
A-
(552)
-’-.1
---
Disc
\ . .- m“:’”
...
.....
....
A
%!=flL J’++ “~~;:’”’//::’’-’’’”
-.
.--~-. \
-\\. ..
d. OPEN/CLOSE MECHANISM \-i .fi
(1)The rotation of the OPEN/CLOSE MOTOR
OPEN/CLOSE IDLER GEAR via the BELT and PULLEY,
and the RACK GEAR whitch is intermeshed with the
OPEN/CLOSE IDLER GEAR moves forward during “OPEN”,
backwards during “CLOSE”. CLOSE END SwlTCH (SW 2)
OPEN /CLOSE RACK GEAR
OPEN/CLOSE LEVER OPEN/CLOSE lDLER GEAR
OPEN/CLOSE IDLER PULLEY TRAY GUIDE TRAY
:-,-,:%-3---- --
OPENICLOSE MOTOR
OPEN END SWITCH (SW1)
-6-

CD
a.
MECHANISM ADJUSTMENTS ..
CD CHANGER Mechanism AND OPEN/CLOSE MOTOR
/5?3 .........................................................................
~Note :
//Ah.7. h
~EM-50L ............. MOLYKOTE, EM-50L :
:SG-7 ............... SANGREA=,SG-7;
:G-474B .............. FLOILOIL, G-474B i
....
.......... ...................................
b. UP/DOWN GEAR
‘m
‘a.,
.......... . ....
mc. CD MECHANISM BLOCK
\
‘,
,.

CD MECHANISM ADJUSTMENTS
d. LOAD/U NLOAD MOTOR $?
d‘“r
\LOAD/U NLOAD CAM GEAR
OR
2
1
., ,..
e. TRAY HOLDER f. CD MECHANISM BLOCK
.
B-TOP ENCOURAGE
CHUCK BRACKET
i+
,.

CD MECHANISM ADJUSTMENTS ,...
. .
g. REPLACEMENT AND LUBRICATION OF THE CD MECHANISM
........... ... ......................................................
~Note:
:EM-50L ............. MOLYKOTE, EM-50L!
:SG-7 ............... SANGREASE,SG-7 !
:G-474B .............. FLOILOILG-474B :
........................................................................ LUG
‘\ ~, \;
1’/ \ \\\
\ \\\ LUG
\\\
/’/’ c1 -x\\\ \
II x’:.
// ,,.-
. .
1/ -.
/’: ~q
1,
,
TUNER, AMP &CD P.W.B
;; CHASSIS
,=== (~<~OLE
.==.
h. CD BASE MECHANISM
*PLUS MARK +PL”US t.lARK
1..
I
I
I
a
‘SP1NOLE(5L:D MOTOR PW.L3
\\+ ....’
.. . e
-9- \- -“”
...-
...
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